Whereas standard drywall can withstand fire for 30 minutes, type X drywall has a 1-hour fire rating. Though sometimes used in homes, type X drywall is usually installed in commercial buildings ...
“Type X” drywall is 5/8 in. thick and designed to slow the spread of fire. It is often required on garage walls and ceilings that adjoin living spaces, ceilings between living spaces inside ...